Materials Literature
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Abstract Crude silica was modified with silsisquioxane (SSO), which was originated from vinyltriethoxysilane, leading to modified silica. The modified silica with vinyl groups was employed to reinforce polydimethylsiloxane (PDMS) through participating in the hydrosilation reaction. Inorganic–organic hybrid network was…
This study showed pronounced changes in the Raman scattering of silicon powder during high-energy ball milling. The powders were milled for 1–18 h in a steel ball mill in argon. The approximate pressure imposed on particles was 2 GPa. The spectra of the as-milled powders were compared with the initial silicon. It was…
Abstract Enolic Schiff base zinc (II) complex 1 was synthesized. XRD revealed 1 was a novel crown‐like macrocycle structure consisted of hexanuclear units of (LZnEt) 6 via the coordination chelation between the Zn atom and adjacent amine nitrogen atom. Further reaction of 1 with one equivalent 2‐propanol at RT produce…
Poly(o-toluidine) (POT) nanofibers with controllable size (see figures) have been successfully synthesized through a chemical polymerization method in acidic aqueous solution using HAuCl4 as the oxidant instead of conventionally used ammonium persulfate without any external template for the first time. The gold nanopa…
Abstract Hyperbranched polycarbosilane with allyl end groups was synthesized via hydrosilylation of methyldiallyldilane, and characterized by Fourier transform infrared spectroscopy, 1 H, 13 C, 29 Si nuclear magnetic resonance, and size exclusion chromatography/multiangle laser light scattering. The degree of branchin…
During their growth, bivalves are recognized to archive minor and trace elements within their shells which may reflect environmental conditions at the sediment-water interface (SWI). Shells from juvenile Great Scallops (Pecten maximus (L.)), which develop a daily calcite growth layer, were collected in the Bay of Sein…
Considerable attention has been paid to nanoparticle (NP) research because of their fascinating properties and potential applications in nanotechnology and biotechnology. Asymmetrically functionalizing NP is of particular interest because it could directly lead to controlled patterning of NPs for a variety of applicat…
Abstract Pure polyteterafluoroethylene (PTFE) were prepared by using the process of cold pressure and sintering. A series of unaxial cyclic compression tests were carried out on solid cylindrical specimens of pure PTFE. The focus of study was to investigate time‐dependent ratchetting behavior of PTFE under cyclic load…
A comparative study was carried out between degumming of raw silk yarns by the conventional methods of degumming and those assisted by microwave radiation. Different reagents are used for this study; viz., mineral acid, alkaline substances, domestic soap, and commercial protease. The proteolytic enzyme savinase 16L ty…
Abstract Phosphorus‐containing trimethoxysilane (DGTH) was blended with Star polyurethane acrylate (SPUA) in different ratios to obtain a series of UV curable intumescent flame retardant resins. The fire properties were characterized by limiting oxygen index (LOI) and cone calorimetry. A distinct synergistic effect wa…
Abstract Isotactic polypropylene (iPP) blends were prepared with two different thermoplastic elastomers, a triblock copolymer styrene–ethylene butylene–styrene (SEBS) and a metallocenic ethylene‐octene copolymer (EO). The mechanical properties and morphology of blends with 0–50 wt% elastomer were studied to determine…
On-board hydrogen production out of hydrocarbons reforming for fuel cells feed-in is subject to problems when using traditional catalytic reformers. High device weight, a relatively long transient time, and catalyst poisoning make their integration in a vehicle complex. In response to these challenges, reforming proce…
Abstract The continuous nanofiber yarns of poly( L ‐lactide) (PLLA)/nano‐β‐tricalcium phosphate (n‐TCP) composite are prepared from oppositely charged electrospun nanofibers by conjugate electrospinning with coupled spinnerets. The morphology and mechanical properties of PLLA/n‐TCP nanofiber yarns are characterized by…
Abstract Poly(3,4‐ethylenedioxythiophene)‐single wall carbon nanotube (SWNT) composites were prepared via coating methods for improving electrical conductivity and flexibility, minimizing loss of transparency. Three types of surface modified SWNTs were prepared through different modification methods: carboxylated SWNT…
Density functional theory (DFT) is used to investigate the adsorption properties of nitrogen on the pentagon at the tip of a capped (5, 5) single-walled carbon nanotube. The adsorption of N(2) outside the carbon nanotube with a parallel orientation with respect to the plane of the pentagon is found to be the most stab…
Nanocrystals (NCs) are one of the important building blocks for fabrication of nanostructured arrays for wide range of optical, electronic, magnetic, catalytic and biosensing applications. Here, our recent advances in the synthesis, self-assembly and application of NC-micelles are highlighted. The NCs are encapsulated…
Contrary to the common belief that a glassy state is stable against crystallization, Oguni and co-workers discovered unusual enhancement of the crystal growth rate of a few molecular liquids below the glass transition temperature ${T}_{g}$. We studied this phenomenon using $o$-terphenyl (OTP) and phenyl salicylate (sa…
Abstract Polymer nanocomposites filled with low volume fractions of carbon nanofibers (CNFs) were prepared by melt‐compounding. Three types of polymers with different crystallization behavior, i.e., weakly‐crystallized low density polyethylene (LDPE), strongly crystallized high density polyethylene (HDPE) and amorphou…
Hollow and filled Cu(2)O nanocubes of about 28 ± 5 nm in edge length with a band gap ∼2.42 eV have been prepared from cupric nitrate in alkaline aqueous solutions containing fructose and ascorbic acid at room temperature. To the best of our knowledge, this simple strategy demonstrates the first example of preparing hi…
The electrochemical redox behavior of immobilized chromium, manganese, iron, cobalt, and nickel protoporphyrins IX has been investigated over the pH 0-14 range. In the investigated potential domain the metalloporphyrins were observed in four different oxidation states (M(I), M(II), M(III) and M(IV)). The metalloporphy…